CN106875321A - A kind of real-time automatic generation method of train line spatial data - Google Patents
A kind of real-time automatic generation method of train line spatial data Download PDFInfo
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Abstract
Automatically generate and uniquely change four steps of determination with train line the invention discloses a kind of real-time automatic generation method of train line spatial data, including structure railway grid database, structure train information database, train line；The present invention is while time-table is issued, time-table can be automatically interpreted in real time, automatically generate rail track spatial data, and based on train GPS positional information, circuit to automatically generating is selected and checked, and ultimately generates unique accurately train line spatial data, serves the application program for relying on rail track data, the accuracy and reliability of base of applications information are ensured, while the speed for greatly reducing the artificial line cost drawn, improving data renewal.
Description
Technical field
The invention belongs to GIS-Geographic Information System, railway planning, railway construction, railway operation dispatching technique field, it is related to one
Plant the real-time automatic generation method of train line spatial data, and in particular to one kind automatically generates train in real time according to time-table
The method of working line.
Background technology
Train operation circuit is train operation state real-time exhibition, train arrival Time Forecast, Train delay assessment and arranges
The basis of car scheduling.As continuing to develop for China's railway construction, especially spring transportation etc. were gone on a journey in the busy period, train time
The adjustment of table is relatively large.Adjustment all redrawing with train line of each time-table.At present, changed the line map in train operation
Afterwards, China is in addition to railroad, and remaining department and agency is difficult the very first time and grasps accurate train line data.And this is caused
In the application related to train line, the renewal of train line not in time, causes the mistake of information.How in time-table hair
Rapid to update train line figure in the short time of cloth, related for train line application, has great importance.
With the development of GIS-Geographic Information System, spatial database technology, Spatial Data Index Technology and spatial analysis are in railway, boat
The fields such as sky, digital map navigation are widely applied.GIS-Geographic Information System, by by geographic object it is abstract be spatial entities,
It is managed and combines according to unified geographical coordinate code, relies on its powerful aggregation of data, simulation and analytic function, can be real
Now the quick positioning to spatial data is searched for, and carries out complicated inquiry, realizes graphics process and expression.Railway construction in China Fang Xing
Do not end, rail track extends in all direction, by the end of the year 2015, china railway revenue kilometres reach 12.1 ten thousand kilometers, wherein high-speed iron
1.9 ten thousand kilometers of road, 150,000 kilometers of four vertical four horizontal Line for Passenger Transportation networks will be built up to the year two thousand twenty.Complicated road network structure and huge
Railway operation and maintenance system, it is necessary to powerful spatial data and method support.At present, Geodatabase, spatial analysis, shortest path
Structure, railway operation adjustment, railway operation scheduling of the methods such as footpath inquiry, optimal path algorithm in railway track spatial database
In played an important role.With continuing to develop for China railways road network construction, the complexity of road network is continuously increased, website is arrived
Circuit is on the increase between website.The circuit of Traditional Man is changed the line map and is checked, and difficulty is increasing, workload is more and more,
Railway cannot be met fast-developing and the need for railway networks run diagram is continually changing down.At present, in the drafting of China railways line, still
More dependence is manually changed the line map, is drawn and group figure, and the automation generation from railway line spatial data also has a certain distance.It is a set of
Based on spatial database and Spatial Data Analysis, automatically generating in real time for rail track can be realized, and build track data storehouse, had
There is important meaning and realistic price.In timeliness, it is delayed that it can solve the problems, such as that related application rail track among the people updates；
On cost, can solve the artificial line transfer of dependence takes time and effort problem, can provide in real time accurately circuit number for railway applications program
According to.
The content of the invention
Draw that artificial dependence is big and China's rail track spatial data among the people is delayed for current rail circuit, update not
Timely problem, the invention provides a kind of real-time automatic generation method of train line database based on time-table, is somebody's turn to do
Method is based on disclosed train schedule information, under the support of geographic information system technology, realizes rail track in real time, quickly
With automatically generate, can ensure that ageing, economy and reliability that rail track spatial data updates.
The technical solution adopted in the present invention is：A kind of real-time automatic generation method of train line spatial data, its feature
It is to comprise the following steps：
Step 1：Build railway grid database
The railway grid database includes point factor data table and line feature tables of data；Described key element is railway station website
Information, point key element is divided into I grade of website and II grade of website according to whether being railway terminal；The line feature is railway track information,
Line feature foundation《Code for design of railway line》It is divided into I, II, III, IV grade of rail track；
Step 2：Build train information database
The information of train is gathered from time-table, the information of each column train will be collected, according to train line data
Table builds and belongs to the single information table of each train, forms train information database；The train line tables of data includes train
Bus Schedules, by way of site information；
Step 3：Train line is automatically generated
According to railway grid database and train information database, automatically determine each train by way of website and website between
Optional line unit, obtains the coordinate set of all composition points of each train line unit, and ultimately generate each train can
Route selection road spatial data；
Step 4：Train line uniquely changes determination；
GPS position information based on train, builds M meters of buffering area of scope of train position, and M is preset value, judges buffering
Whether the line unit in the range of area has a plurality of circuit, if so, the then row where the nearest coordinate points of judging distance train position
Car line number, determines that the line number is the unique correct circuit of the line unit, and then generate the unique correct line of each train
The coordinate point set on road, builds the train line spatial database of each train.
The beneficial effects of the invention are as follows while time-table is issued, the iron in database being automatically updated in real time
Route road spatial data, serves the application program for relying on rail track data, it is ensured that the accuracy of base of applications information
And reliability, while the speed for greatly reducing the artificial line cost drawn, improving data renewal.
Brief description of the drawings
Fig. 1：The method flow diagram of the embodiment of the present invention.
Fig. 2：The flow chart that the circuit point set of the embodiment of the present invention is automatically generated.
Fig. 3：The uniqueness for having the line unit of a plurality of railway line determines schematic diagram.
Specific embodiment
Understand for the ease of those of ordinary skill in the art and implement the present invention, below in conjunction with the accompanying drawings and embodiment is to this hair
It is bright to be described in further detail, it will be appreciated that implementation example described herein is merely to illustrate and explain the present invention, not
For limiting the present invention.
China's railway authoritative department only issues the railway networks run diagram of form word version when railway networks run diagram is adjusted, and simultaneously
Do not issue corresponding coach route spatial data, because China railways net is complicated, it is site-to-site between optional rail track
It is more, this give since time-table base of applications data renewal bring greatly challenge, each railroad
Carry out train operation to change the line map, related application is required for substantial amounts of manpower and materials to carry out the adjustment of coach route.Based on this, this hair
It is bright to propose a kind of real-time automatic generation method of train line database based on time-table.In existing china railway unit number
On the basis of, based on railway networks run diagram, automatically generating in real time to coach route spatial data is realized, iron will be efficiently solved
The problems such as basic coach route data update slow, inaccurate in the related application of road.
A kind of real-time automatic generation method of train line database based on time-table, by building the railway network and row
Car data storehouse, the interpretation structure train information database for carrying out time-table, automatically generate train line on this basis, and
Based on train GPS location information, the uniqueness for carrying out rail track determines, and then generates train operation circuit spatial data.
See a kind of real-time automatic generation method of train line spatial data that Fig. 1, the present invention are provided, including following step
Suddenly：
Step 1：Build railway grid database；
Railway grid database includes point factor data table and line feature tables of data；Point key element is railway station site information, point
Key element is divided into I grade of website and II grade of website according to whether being railway terminal；Line feature is railway track information, line feature foundation
《Code for design of railway line》It is divided into I, II, III, IV grade of rail track；
Its midpoint factor data table, as shown in table 1：
1 factor data table of table
Wherein line feature tables of data, as shown in table 2：
The line feature tables of data of table 2
Step 2：Build train information database；
The information of train is gathered from time-table, the information of each column train will be collected, according to train line data
Table builds and belongs to the single information table of each train, forms train information database；The train line tables of data includes train
Bus Schedules, by way of site information；
Wherein train line tables of data, as shown in table 3：
The train line tables of data of table 3
After train adjustment, railroad can issue newest time-table, the car comprising train in time-table
The title of all websites that secondary, train the time of departure, train pass through, in information such as each residence times stood.According to these
Information, with reference to the structure of train line tables of data in step 2, builds train information database.Comprise the following steps that：
Step 2.1：The essential information of train in collection time-table, including the website that the train number of train, train pass through
Title；
Step 2.2：The train number that each column train will be collected builds the single information table of train, is named as TrainName_
DB, wherein, TrainName is the train number of train；
Step 2.3：The information table of each column train is built, according to train number, in train information tables of data, search is obtained
Its numbering；The title of the website passed through according to train, in a factor data table, row is inserted by the corresponding Site ID of site name
In the TrainSts of car information data table, the number of all TrainSts is counted, insert train information tables of data
In TrainNumsts；
Step 2.4：According to a factor data table, the place railway line ID of each website is searched for, inserted successively
In TrainLines；
Step 2.5：All train information tables of data are stored in database, build train information database.
Step 3：Train line is automatically generated；
According to railway grid database and train information database, automatically determine each train by way of website and circuit,
The coordinate of all composition points of each train line is obtained, the track data storehouse of each train is built.
See Fig. 2, implement including following sub-step：
Step 3.1：Determine train by way of website and circuit, from initiating station to terminus, number consecutively S_1~S_N；
Step 3.2：It is determined that the line unit of the train line to be generated, is a complete computing unit, root with train number
The Origin And Destination of the calculative line unit of a coastiong time and line unit is obtained according to train information tables of data；Search starting point
Stand and terminus place railway line ID, its common place railway line ID, then be the place railway line ID in table；Due to two
There may be a plurality of railway line between individual station, then a line unit there may be multiple optional railway line ID, and its is all possible
Line unit number represents with NUMIDS, each line unit railway line, from 1 open numbering.
The line unit of the train line is：
Step 3.3：According to the inception point and terminus of line unit S_N, in the coordinate in railway line where searching it
Sequence number IDX1 and IDX2, the coordinate point set of IDX1~IDX2 is picked out from railway line database, if S_N has m coordinate points,
Then the coordinate point set of line unit S_N is：
S_N=[(lon1,lat1),(lon2,lat2)…(lonm,latm)]
If the coordinate points set representations that line unit S_N has the optional railway line of K bars, a plurality of circuit of S_N are：
Step 3.4：1~N-1 all of the coordinate points of line unit are combined, the point set for obtaining is then train line
Coordinate point set L；
L={ S_1, S_2 ..., S_N-1 }, wherein S_1 to S_N-1 is not all uniquely.
Step 3.5：By all trains in train information database, according to the method for step 3.1~step 3.4, automatically
Generate the coordinate point set of the working line of each train.
Step 4：Train line uniquely changes determination：
GPS position information based on train, builds 10 meters of buffering areas of scope of train position, judges in the range of buffering area
Whether line unit has a plurality of circuit, if so, the then train line number where the nearest coordinate points of judging distance train position, really
The fixed line number is the unique correct circuit of the line unit, and then generates the coordinate points of the unique correct circuit of each train
Collection, builds the train line spatial database of each train.
Fig. 3 is referred to, the coordinate point set for generating the unique correct circuit of each train specifically includes following steps：
Step 4.1：The GPS location for determining the train of current time t is P (trant_t)；
P (train_t)=(lont, latt)
Step 4.2：10 meters of buffering areas of scope of train position are built, judges that the line unit S_N in the range of buffering area is compiled
Number, if the NUMIDS of line unit S_N is more than 1, step 4.3 is transferred to, step 4.1 is otherwise transferred to, until train is reached home
Stand, be transferred to step 4.5；
Step 4.3：Search in the coordinate point set L of the train line, the coordinate p of the point nearest apart from train_t, search is obtained
The line number LineID where line unit S_N and the point where obtaining the point.
Step 4.4：Determine the unique correct circuit that LineID is line unit S_N.
Step 4.5：The point set of the unique correct circuit of all line units is connected, the coordinate point set of train line is built
TL；
TL={ S_1, S_2 ..., S_N-1 }, wherein S_1 to S_N-1 are unique.
It should be appreciated that the part that this specification is not elaborated belongs to prior art.
It should be appreciated that the above-mentioned description for embodiment is more detailed, therefore can not be considered to the present invention
The limitation of scope of patent protection, one of ordinary skill in the art, will right of the present invention is not departed under enlightenment of the invention
Ask under protected ambit, replacement can also be made or deformed, each fall within protection scope of the present invention, it is of the invention
Scope is claimed should be determined by the appended claims.
Claims (7)
1. a kind of real-time automatic generation method of train line spatial data, it is characterised in that comprise the following steps：
Step 1：Build railway grid database；
The railway grid database includes point factor data table and line feature tables of data；Described key element is believed for railway station website
Breath, point key element is divided into I grade of website and II grade of website according to whether being railway terminal；The line feature is railway track information, line
Key element foundation《Code for design of railway line》It is divided into I, II, III, IV grade of rail track；
Step 2：Build train information database；
The information of train is gathered from time-table, the information of each column train will be collected, according to train line tables of data structure
Build and belong to the single information table of each train, form train information database；The train line tables of data includes the car of train
Secondary information, by way of site information；
Step 3：Train line is automatically generated；
According to railway grid database and train information database, automatically determine each train by way of website and website between it is optional
Line unit, obtain the coordinate set of all composition points of each train line unit, ultimately generate each train can route selection
Road spatial data；
Step 4：Train line uniquely changes determination；
GPS position information based on train, builds M meters of buffering area of scope of train position, and M is preset value, judges buffering area model
Whether the line unit in enclosing has a plurality of circuit, if so, the then train-line where the nearest coordinate points of judging distance train position
Lu Hao, determines that the line number is the unique correct circuit of the line unit, and then generate the unique correct circuit of each train
Coordinate point set, builds the train line spatial database of each train.
2. the real-time automatic generation method of train line database according to claim 1, it is characterised in that institute in step 1
Stating a factor data table is：
3. the real-time automatic generation method of train line database according to claim 1, it is characterised in that institute in step 1
Stating line feature tables of data is：
4. the real-time automatic generation method of train line database according to claim 1, it is characterised in that institute in step 2
Stating train line tables of data is：
5. the real-time automatic generation method of train line database according to claim 4, it is characterised in that the tool of step 2
Body is realized including following sub-step：
Step 2.1：The essential information of train in collection time-table, including the name of website that the train number of train, train pass through
Claim；
Step 2.2：The train number that each column train will be collected builds the single information table of train, is named as TrainName_DB, its
In, TrainName is the train number of train；
Step 2.3：The information table of each column train is built, according to train number, in train information tables of data, search obtains its volume
Number；The title of the website passed through according to train, in a factor data table, train letter is inserted by the corresponding Site ID of site name
Cease in the TrainSts of tables of data, count the number of all TrainSts, insert the TrainNumsts of train information tables of data
In；
Step 2.4：According to a factor data table, the place railway line ID of each website is searched for, in inserting TrainLines successively；
Step 2.5：All train information tables of data are stored in database, build train information database.
6. the real-time automatic generation method of train line database according to claim 1, it is characterised in that the tool of step 3
Body is realized including following sub-step：
Step 3.1：Determine train by way of website and circuit, from initiating station to terminus, number consecutively S_1~S_N；
Step 3.2：It is determined that the line unit of the train line to be generated, is a complete computing unit with train number, according to row
Car information data table obtains the Origin And Destination of the calculative line unit of a coastiong time and line unit；Search starting point station and
The place railway line ID of terminus, its common place railway line ID, then be the place railway line ID in table；Due to two stations
Between may have a plurality of railway line, then line unit may have multiple optional railway line ID, its all possible circuit
Unit number represents with NUMIDS, each line unit railway line, from 1 open numbering；
The line unit of the train line is：
Step 3.3：According to the inception point and terminus of line unit S_N, the sequence in the coordinate in railway line where searching it
Number IDX1 and IDX2, picks out the coordinate point set of IDX1~IDX2, if S_N has m coordinate points, line from railway line database
The coordinate point set of road cell S _ N is：
S_N=[(lon1,lat1),(lon2,lat2)…(lonm,latm)]
If the coordinate points set representations that line unit S_N has the optional railway line of K bars, a plurality of circuit of S_N are：
S_N=S_N_1, S_N_2 ..., S_N_K }
={ [(lon1_1,lat1_1),(lon1_2,lat1_2)…(lon1_m,lat1_m)],…,[(lonN_1,latN_1),
(lonN_2,latN_1)...(lonN_m,latN_m)]}
Step 3.4：1~N-1 all of the coordinate points of line unit are combined, the point set for obtaining is then the seat of train line
Punctuate collection L；
L={ S_1, S_2 ..., S_N-1 }, wherein S_1 to S_N-1 is not all uniquely；
Step 3.5：By all trains in train information database, according to the method for step 3.1~step 3.4, automatically generate
The coordinate point set of the working line of each train.
7. the real-time automatic generation method of train line database according to claim 1, it is characterised in that the tool of step 4
Body is realized including following sub-step：
Step 4.1：The GPS location for determining the train of current time t is P (trant_t)；
P (train_t)=(lont, latt)
Step 4.2：M meters of buffering area of scope of train position is built, the line unit S_N numberings in the range of buffering area are judged, if
The NUMIDS of line unit S_N is more than 1, then be transferred to step 4.3, is otherwise transferred to step 4.1, until train is reached terminal, turns
Enter step 4.5；
Step 4.3：Search in the coordinate point set L of the train line, the coordinate p of the point nearest apart from train_t, search is somebody's turn to do
The line number LineID where line unit S_N and the point where point；
Step 4.4：Determine the unique correct circuit that LineID is line unit S_N；
Step 4.5：The point set of the unique correct circuit of all line units is connected, the coordinate point set TL of train line is built；
TL={ S_1, S_2 ..., S_N-1 }, wherein S_1 to S_N-1 are unique.
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| CN111555829A (en) * | 2020-04-23 | 2020-08-18 | 深圳市北海轨道交通技术有限公司 | System and method for publishing passenger train broadcast operation profile |
| CN112380248A (en) * | 2020-11-24 | 2021-02-19 | 深圳市长龙铁路电子工程有限公司 | Train number generation method and device, computer equipment and storage medium |
| CN115402384A (en) * | 2022-10-09 | 2022-11-29 | 中国铁道科学研究院集团有限公司通信信号研究所 | Train default arrival and departure line flexible distribution method based on multiple rules and application thereof |
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| CN115402384B (en) * | 2022-10-09 | 2023-12-26 | 中国铁道科学研究院集团有限公司通信信号研究所 | Train default to departure flexible allocation method based on multiple rules and application thereof |
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| CN106875321B (en) | 2020-07-10 |
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